BENTLY 3500/44M 176449-03

Description

Detailed parameter table

BENTLY 3500/44M 176449-03

Product introduction

The 3500/44M 176449-03 from Bently Nevada is an advanced multi-parameter monitoring module in the 3500 Machinery Protection System lineup, designed to provide comprehensive machinery health monitoring by combining vibration, position, and temperature measurements. This 2-slot module builds upon the capabilities of other 3500 monitoring modules by adding dedicated temperature input channels, making it a versatile solution for applications requiring correlated mechanical and thermal condition monitoring. Bently Nevada’s 3500/44M 176449-03 serves as a centralized measurement hub that converts diverse sensor inputs into actionable health metrics, powered reliably by 3500/15 106M1079-01 power supply modules.

As an integrated monitoring solution, 3500/44M 176449-03 accepts signals from proximity probes, RTDs, and thermocouples (connected via 136711-01 cables) to monitor critical machinery parameters simultaneously. Installed in 125744-02 racks and configured through 136180-01 modules, it delivers real-time protection through configurable alarms while providing correlated data for advanced diagnostic analysis. This module is particularly valuable in applications where mechanical issues are often preceded by temperature changes, such as bearing degradation in turbines, compressors, and large motors.

Core advantages and technical highlights

Integrated multi-parameter monitoring: A defining feature of 3500/44M 176449-03 is its ability to monitor vibration, position, and temperature parameters through the same module, eliminating the need for separate temperature monitoring systems. This integration allows for correlation of mechanical vibration with thermal conditions, enabling earlier detection of issues like bearing overheating that may precede catastrophic failures.

Enhanced temperature measurement: The module includes dedicated channels for RTD and thermocouple inputs with ±1°C accuracy across a -20°C to +150°C range, providing critical thermal data alongside mechanical measurements. This capability is essential for monitoring bearing temperatures, stator windings, and other heat-sensitive components in rotating machinery.

Precision signal processing: Building on 3500 series technology, 3500/44M 176449-03 delivers ±0.2% full-scale accuracy for vibration and position measurements across a 0.1 Hz to 10 kHz frequency range. This precision, combined with stable power from 3500/15 106M1079-01 modules, ensures reliable detection of subtle machinery condition changes that indicate early-stage faults.

Correlated alarm logic: The module’s alarm system can be configured to trigger based on combined conditions across different parameter types (e.g., high vibration plus elevated temperature), reducing false alarms while increasing detection sensitivity for complex machinery issues. This multi-parameter alarm capability provides more accurate protection than single-parameter monitoring systems.

Typical application scenarios

Steam turbine monitoring

In power generation steam turbines, 3500/44M 176449-03 modules monitor radial vibration, axial thrust position, and bearing temperatures simultaneously. Powered by 3500/15 106M1079-01 supplies in redundant configurations, they track vibration levels on turbine bearings while measuring temperatures at critical points. This combination allows early detection of bearing degradation, where increasing temperatures often precede measurable vibration increases. The module integrates with 133388-01 transient monitors to capture high-speed data during temperature or vibration excursions.

Centrifugal compressor protection

Oil and gas compressor stations utilize 3500/44M 176449-03 to monitor vibration, shaft position, and seal temperature in centrifugal compressors. The module’s temperature channels track bearing oil temperatures and seal gas temperatures, while vibration channels monitor rotor behavior. By correlating these measurements, operators can distinguish between mechanical issues (like misalignment) and thermal problems (like insufficient lubrication), enabling targeted maintenance interventions. The stable power from 3500/15 106M1079-01 ensures continuous monitoring even during electrical fluctuations common in remote locations.

Large motor condition monitoring

In manufacturing facilities, 3500/44M 176449-03 modules monitor critical production motors by tracking stator winding temperatures alongside bearing vibration and shaft position. This comprehensive monitoring detects issues such as rotor bar defects (indicated by vibration patterns) and insulation degradation (shown by temperature trends). The module shares data with plant asset management systems via communication gateways, providing maintenance teams with correlated mechanical and thermal condition data to optimize motor maintenance schedules.

BENTLY 3500/44M 176449-03

Related model recommendations

3500/15 106M1079-01: Power supply module providing regulated power to 3500/44M 176449-03.

125744-02: Rack assembly housing the module and associated 3500 components.

136180-01: Configuration module for programming monitoring parameters and alarm logic.

133388-01: Transient monitor for high-speed data capture during alarm conditions.

136711-01: Sensor cable for connecting proximity probes and temperature sensors.

3500/60 163179-01: Display module for visualizing correlated parameter data.

140734-02: Complementary vibration monitor for system expansion in larger installations.

Installation, commissioning and maintenance instructions

Installation

Install 3500/44M 176449-03 in a 125744-02 rack with a properly configured 3500/15 106M1079-01 power supply in the bottom slot. Ensure two adjacent slots are available and verify rack firmware compatibility. Connect proximity probes, RTDs, and thermocouples using shielded 136711-01 cables, following proper wiring diagrams for each sensor type. Secure all connections with appropriate torque (0.5-0.6 N·m) to prevent signal interference. Confirm the power supply is rated to handle the module’s 11 W maximum load, especially in systems with multiple modules.

Commissioning

After installation, configure the module using 136180-01 configuration tools, setting input types (vibration, RTD, thermocouple) for each channel based on connected sensors. Calibrate temperature channels using certified temperature references to ensure ±1°C accuracy. Verify vibration measurement accuracy with a calibrated vibration exciter. Configure alarm thresholds for each parameter, including combined condition alarms where appropriate. Test alarm functionality by simulating abnormal conditions and verifying proper activation of outputs and communication to transient monitors like 133388-01.

Maintenance

Include 3500/44M 176449-03 in quarterly system inspections, verifying status indicators and ensuring stable power from 3500/15 106M1079-01 supplies. Perform annual calibration of temperature channels using certified standards and verify vibration accuracy with calibration equipment. Inspect sensor connections for corrosion or looseness, particularly for temperature sensors which are prone to connection resistance issues. Download and analyze trend data to identify correlations between temperature and vibration changes. Update firmware during scheduled system upgrades to maintain compatibility with power supplies and other system components.

Service and guarantee commitment

Bently Nevada provides the 3500/44M 176449-03 with a 36-month warranty covering manufacturing defects and performance issues under normal operating conditions, including measurement accuracy, alarm functionality, and component reliability when powered by compatible supplies like 3500/15 106M1079-01. Our technical support team offers expert guidance on configuration, sensor integration, and troubleshooting of multi-parameter monitoring systems.

We offer specialized training on interpreting correlated vibration and temperature data, module programming, and maintenance procedures specific to 3500/44M 176449-03. Beyond the warranty period, our service agreements include calibration verification, technical support, and expedited replacement services to minimize downtime. Bently Nevada’s commitment to quality ensures reliable performance throughout the module’s operational lifecycle, backed by our global network of service professionals.